Miller Mod Saws and the CS-500P Echo!

[Miller Mod Saws]

Epoxy that intake and make it as wide as you can.
See how it goes. Then like Mike was saying, raise ex in steps to find it's happy place..
Also, running .325 on a 20" bar is for smoothness in limbing, operator's convenience, and reach. Not speed for sure. The design sucks the power out of a saw, as it wallows in it's own debris, so it's hard to really narrow down improvements.
I like my 500P, but it sure ain't a speed demon.
Seems you got good torque gains out of victim #1 though.
Let's see some rpm's out of #2!

Well work up to it for sure. I would prefer to see what I can get without epoxy and then epoxy the one that's mine for final gains.

 

[Miller Mod Saws]

Good post Matt.

I've got one to do too. I'll be sure and get good before and after vids and add them here.

I look forward to this.

Next vids will come with a good 18" .325 bar more suited to the saw.

 

[Hedgerow]

I look forward to this.

Next vids will come with a good 18" .325 bar more suited to the saw.

Post em up so I can watch em here at the plant..

My reception sux at the house..
No video watching for me there..

 

[Miller Mod Saws]

Post em up so I can watch em here at the plant..

My reception sux at the house..
No video watching for me there..

At least I'm not the only one that has the problem in your neck of the woods. Lol.

 

[SawTroll]

Did you mean 501sx troll?

Carl looks like you got a little more play on this build over here than @ FHC. I'd be interested to see how echo squeezed the extra ponies out of that 501sx. Wonder of its got a flat top piston in it.

Yes, 501SX.

 

[Miller Mod Saws]

Not much to add yet boys. Saw 2 is going back together but I need a little better baseline of were the gains are coming from. So thus saw I took .035" off the base. I didn't touch the intake yet. 110/128/86 is were it sits and I added a dual port. When It's going together now to test against saw 1 then based on that I will tear it down and play somemore.

 

[Miller Mod Saws]

Ok guys for some results to talk about. Now remember saw 1 has more fuel threw it than 2. Saw 2 is still on tank 1 so it'll hinder the results a tad. But saw 1 is defiantly the stronger 1. Saw 2 is holding roughly 10800 in the cut. Saw 2 is 11300. So almost 500 more rpm. Saw 2 is running a tad more comp. It came in at 200.

 

[Mastermind]

Recap the differences please Carl.

 

[Miller Mod Saws]

Difference!
Saw 1- 110/125/85 195 comp, exhaust the same 65%, intake widened

Saw 2- 110/128/86 200 comp, stock intake, dual port so it's at roughly 80% now and sounds better. Lol.

Big changes- 3 ° more blowdown, 25% more exhaust outlet, and stock intake.
I only took .005" more off the base on saw 2.

 

[Miller Mod Saws]

Recap the differences please Carl.

I was typing when you responded. Lol.

 

[Mastermind]

So........now it's time to fill the intake and widen it.

 

[Miller Mod Saws]

So........now it's time to fill the intake and widen it.

Or is it time to take the exhaust higher? This saw has to have the potential for 12k in the cut. I just gotta find it. Neither saw is lacking for torque. But saw 1 definatly dosnt bog as easy. But I'm hoping part of that is saw 1 has more tanks of fuel.

 

[Mastermind]

I think 128 is way too low on the transfers......

 

[Miller Mod Saws]

I think 128 is way too low on the transfers......

I agree. I was really just trying to see were I got the gains on the first saw. So give me you opinion. Remember saw 1 is mine so if I go backwards for the sake of finding gains it's no big deal. Saw 2 is a customers so it's the important one. So should I epoxy saw 1 up and and set it at the width I have it now but grind it square to 75° or try raising one of the 2 to 105/123/?

 

[Mastermind]

I would raise the transfers without doing any other mods. Go to 125......and if you see gains........then go a couple more degrees.

 

[Mastermind]

I just realized how low the exhaust is........weird mfer.

 

[Miller Mod Saws]

I would raise the transfers without doing any other mods. Go to 125......and if you see gains........then go a couple more degrees.

Saw 1 is at 125. Lol. But with the 110 exhaust. That's why I'm at the cross roads. I really wanna get this thing up to a 105-107 exhaust. But them again. I don't wanna kill it either. ; )

 

[Mastermind]

I'd still go up to 125. That would tell you a lot.

 

[Mastermind]

Hell......

What about going up 2° on the transfers and the exhaust?

 

[Miller Mod Saws]

That's kinda what I was thinking take saw 2 to 108/126 is that what you were meaning. Or 108/124.